#!/bin/sh
if [ "X$1" = "X" ]
then
INPUT="-"
else INPUT=$1
fi
if [ "X$2" = "X" ]
then
OUTPUT=`tty`
else OUTPUT="$2"
fi
cat $INPUT | tr [a-mn-zA-MN-Z] [n-za-mN-ZA-m] > $OUTPUT
if [ "X$1" = "X" ]
then
INPUT="-"
else INPUT=$1
fi
if [ "X$2" = "X" ]
then
OUTPUT=`tty`
else OUTPUT="$2"
fi
cat $INPUT | tr [a-mn-zA-MN-Z] [n-za-mN-ZA-m] > $OUTPUT